English verb conjugation COULD DECALCIFY

Regular verb: decalcify - decalcified - decalcified

Affirmation

Simple form

I could decalcify
you could decalcify
he could decalcify
we could decalcify
you could decalcify
they could decalcify

V-ing form

I could be decalcifying
you could be decalcifying
he could be decalcifying
we could be decalcifying
you could be decalcifying
they could be decalcifying

Perfect

I could have decalcified
you could have decalcified
he could have decalcified
we could have decalcified
you could have decalcified
they could have decalcified

V-ing perfect

I could have been decalcifying
you could have been decalcifying
he could have been decalcifying
we could have been decalcifying
you could have been decalcifying
they could have been decalcifying

Negation

Simple form

I couldn't decalcify
you couldn't decalcify
he couldn't decalcify
we couldn't decalcify
you couldn't decalcify
they couldn't decalcify

V-ing form

I couldn't be decalcifying
you couldn't be decalcifying
he couldn't be decalcifying
we couldn't be decalcifying
you couldn't be decalcifying
they couldn't be decalcifying

Perfect

I couldn't have decalcified
you couldn't have decalcified
he couldn't have decalcified
we couldn't have decalcified
you couldn't have decalcified
they couldn't have decalcified

V-ing perfect

I couldn't have been decalcifying
you couldn't have been decalcifying
he couldn't have been decalcifying
we couldn't have been decalcifying
you couldn't have been decalcifying
they couldn't have been decalcifying

Interrogative form

Simple form

could I decalcify?
could you decalcify?
could he decalcify?
could we decalcify?
could you decalcify?
could they decalcify?

V-ing form

could I be decalcifying?
could you be decalcifying?
could he be decalcifying?
could we be decalcifying?
could you be decalcifying?
could they be decalcifying?

Perfect

could I have decalcified?
could you have decalcified?
could he have decalcified?
could we have decalcified?
could you have decalcified?
could they have decalcified?

V-ing perfect

could I have been decalcifying?
could you have been decalcifying?
could he have been decalcifying?
could we have been decalcifying?
could you have been decalcifying?
could they have been decalcifying?

Interro-negative form

Simple form

couldn't I decalcify?
couldn't you decalcify?
couldn't he decalcify?
couldn't we decalcify?
couldn't you decalcify?
couldn't they decalcify?

V-ing form

couldn't I be decalcifying?
couldn't you be decalcifying?
couldn't he be decalcifying?
couldn't we be decalcifying?
couldn't you be decalcifying?
couldn't they be decalcifying?

Perfect

couldn't I have decalcified?
couldn't you have decalcified?
couldn't he have decalcified?
couldn't we have decalcified?
couldn't you have decalcified?
couldn't they have decalcified?

V-ing perfect

couldn't I have been decalcifying?
couldn't you have been decalcifying?
couldn't he have been decalcifying?
couldn't we have been decalcifying?
couldn't you have been decalcifying?
couldn't they have been decalcifying?

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